Nuclear level densities and {gamma}-ray strength functions in {sup 44,45}Sc

摘要: The scandium isotopes {sup 44,45}Sc were studied with the 45}Sc({sup 3}He, {alpha}{gamma}){sup 44}Sc and 3}He{sup '}{gamma}){sup 45}Sc reactions, respectively. nuclear level densities {gamma}-ray strength functions have been extracted using Oslo method. experimental are compared to calculated obtained from a microscopic model based on BCS quasiparticles within Nilsson scheme. This also gives information about parity distribution number of broken Cooper pairs as function excitation energy. theoretical models E1, M1, E2 data ({gamma}, n) ({gamma},p) experiments. show an enhancement at low {gamma} energies that cannot be explained by present standard models.